package shoppersservlets;

import infraestructura.PersistenceManager;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import modelo.Product;

@WebServlet(name = "producto", urlPatterns = {"/producto"})
public class Products extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            PersistenceManager mang = PersistenceManager.getPersistenceManager(getServletContext().getInitParameter("persistenceMethod"));
            if (request.getParameter("id") == null) {
                request.getRequestDispatcher("./").forward(request, response);
            }            
            Product producto = mang.getProduct(Integer.parseInt(request.getParameter("id")));
            Integer id = producto.getId();
            String longDescription = producto.getLongDescription();
            String shortDescription = producto.getShortDescription();
            String name = producto.getName();
            Double price = producto.getPrice();
            Integer availableStock = producto.getStock();     
            List commentList = mang.getCommentsForProduct(id);
            request.setAttribute("commentList", commentList);
            request.setAttribute("id", id);
            request.setAttribute("longDescription", longDescription);
            request.setAttribute("shortDescription", shortDescription);
            request.setAttribute("name", name);
            request.setAttribute("price", price);
            request.setAttribute("availableStock", availableStock);
            
            request.getRequestDispatcher("./WEB-INF/product.jsp").forward(request, response);
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
